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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-73032] SBE plan cache prevents range deletion from running for rooted $or queries</title>
                <link>https://jira.mongodb.org/browse/SERVER-73032</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-61835&quot; title=&quot;Fix how SBE plan cache deals with ShardFilterer&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-61835&quot;&gt;&lt;del&gt;SERVER-61835&lt;/del&gt;&lt;/a&gt; fixed a situation where the SBE plan cache improperly caches a ShardFilter, which prevents range deletions from running. It seems like for some query shapes this is still happening. The query shape in particular I found is&lt;/p&gt;
&lt;p/&gt;
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&lt;p/&gt;
&lt;p&gt;&#160;&lt;/p&gt;</description>
                <environment></environment>
        <key id="2237075">SERVER-73032</key>
            <summary>SBE plan cache prevents range deletion from running for rooted $or queries</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="13201">Fixed</resolution>
                                        <assignee username="david.storch@mongodb.com">David Storch</assignee>
                                    <reporter username="jordi.serra-torrens@mongodb.com">Jordi Serra Torrens</reporter>
                        <labels>
                            <label>pm2697-63</label>
                            <label>pm2697-m3</label>
                    </labels>
                <created>Thu, 19 Jan 2023 11:04:22 +0000</created>
                <updated>Sun, 29 Oct 2023 21:27:52 +0000</updated>
                            <resolved>Thu, 26 Jan 2023 17:23:07 +0000</resolved>
                                                    <fixVersion>6.3.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="5143424" author="xgen-internal-githook" created="Thu, 26 Jan 2023 17:01:33 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;David Storch&apos;, &apos;email&apos;: &apos;david.storch@mongodb.com&apos;, &apos;username&apos;: &apos;dstorch&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-73032&quot; title=&quot;SBE plan cache prevents range deletion from running for rooted $or queries&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-73032&quot;&gt;&lt;del&gt;SERVER-73032&lt;/del&gt;&lt;/a&gt; Fix SBE subplanner to avoid caching ShardFilterer&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/3c1f515464cc63ceeb73946cfd61997676697925&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/3c1f515464cc63ceeb73946cfd61997676697925&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5138248" author="david.storch" created="Tue, 24 Jan 2023 23:44:43 +0000"  >&lt;p&gt;This WIP branch has a working fix: &lt;a href=&quot;https://github.com/dstorch/mongo/tree/SERVER-73032&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/dstorch/mongo/tree/SERVER-73032&lt;/a&gt;. I hope to add a test case and put it up for code review tomorrow.&lt;/p&gt;</comment>
                            <comment id="5138197" author="david.storch" created="Tue, 24 Jan 2023 23:23:02 +0000"  >&lt;p&gt;Thanks for reporting this issue &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=jordi.serra-torrens%40mongodb.com&quot; class=&quot;user-hover&quot; rel=&quot;jordi.serra-torrens@mongodb.com&quot;&gt;jordi.serra-torrens@mongodb.com&lt;/a&gt;! I can reproduce the bug as described. The intended design is that any plan which is stored in the cache consists of clones made of the &lt;tt&gt;sbe::PlanStage&lt;/tt&gt; tree and the &lt;tt&gt;PlanStageData&lt;/tt&gt; &lt;em&gt;before&lt;/em&gt; the query is prepared or executed. This ensures that the SBE plan and its associated &lt;tt&gt;RuntimeEnvironment&lt;/tt&gt; are in a clean state. In particular in this case, it means that the clone of the &lt;tt&gt;RuntimeEnvironment&lt;/tt&gt; is made before it is populated with the shard filterer, thus avoiding a situation where we are accidentally caching the shard filter and preventing range deletion.&lt;/p&gt;

&lt;p&gt;Since the problematic query in question is a rooted-&lt;tt&gt;$or&lt;/tt&gt;, it seems that the subplanning path does not conform to the design described above. As a next step, I&apos;m going to re-read the code for SBE subplanning to see if I can spot the issue.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10011">
                    <name>Depends</name>
                                                                <inwardlinks description="is depended on by">
                                        <issuelink>
            <issuekey id="913256">SERVER-43099</issuekey>
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            <issuekey id="1940536">SERVER-61835</issuekey>
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                            <attachment id="426813" name="repro-server-73032.patch" size="1341" author="jordi.serra-torrens@mongodb.com" created="Thu, 19 Jan 2023 11:05:11 +0000"/>
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&lt;p&gt;Run jstests/sharding/sbe_plan_cache_does_not_block_range_deletion.js on the sharding suite with &apos;featureFlagSbeFull&apos; enabled.&lt;/p&gt;</customfieldvalue>

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